80779504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{388363}}^1$

素因数の和:388384

約数の個数: 20

約数和(自身を含む): 168549976

約数和(自身を除く): 87770472

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 388363, 776726, 1553452, 3106904, 5048719, 6213808, 10097438, 20194876, 40389752, 80779504]

約数ペア:

[(1, 80779504), (2, 40389752), (4, 20194876), (8, 10097438), (13, 6213808), (16, 5048719), (26, 3106904), (52, 1553452), (104, 776726), (208, 388363)]